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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-01-14 00:39:39 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-01-31 22:56:15 +0100 |
| commit | b51f1f5a1911b607e377d442cb9cbd74eb8d646a (patch) | |
| tree | 376839e3c52fda436203a0749e46fffe68247b8c | |
| parent | 3e499537a46f8e758103c26bf95363029e79bbd4 (diff) | |
| download | ffmpeg-b51f1f5a1911b607e377d442cb9cbd74eb8d646a.tar.gz | |
avcodec/ac3dec_fixed: Fix integer overflow in scale_coefs()
Fixes: runtime error: signed integer overflow: 2147483520 + 128 cannot be represented in type 'int'
Fixes: 4800/clusterfuzz-testcase-minimized-6110372403609600
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a1f38c75893c852cf19dcf3e4553549ba1e70950)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/ac3dec_fixed.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/ac3dec_fixed.c b/libavcodec/ac3dec_fixed.c index c0a40ba6f3..332a0622f5 100644 --- a/libavcodec/ac3dec_fixed.c +++ b/libavcodec/ac3dec_fixed.c @@ -64,8 +64,8 @@ static void scale_coefs ( int dynrng, int len) { - int i, shift, round; - unsigned mul; + int i, shift; + unsigned mul, round; int temp, temp1, temp2, temp3, temp4, temp5, temp6, temp7; mul = (dynrng & 0x1f) + 0x20; |